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JJF 1634-2017 English PDF

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JJF 1634-2017: Calibration Specification for Linear Accelerometers at Ultra-low Frequency and Ultra-low Level Acceleration
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JJF 1634-2017English419 Add to Cart 4 days [Need to translate] Calibration Specification for Linear Accelerometers at Ultra-low Frequency and Ultra-low Level Acceleration Valid JJF 1634-2017

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Basic data

Standard ID JJF 1634-2017 (JJF1634-2017)
Description (Translated English) Calibration Specification for Linear Accelerometers at Ultra-low Frequency and Ultra-low Level Acceleration
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A57
Classification of International Standard 17.080
Word Count Estimation 18,120
Date of Issue 2017-09-26
Date of Implementation 2017-12-26
Quoted Standard JJG 233-2008; JJF 1156-2006; GJB 585A-1998; GJB 1037A-2004; IEEE STD 836-2009
Adopted Standard IEEE Std 836-2009, NEQ
Regulation (derived from) General Administration of State Quality Inspection Announcement 2017 No. 78
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine
Summary This standard specifies the calibration items and calibration methods for line accelerometers (hereinafter referred to as accelerometers) under the conditions of ultra-low frequency (low limit to 0. 001 Hz) and micro-acceleration (lower limit to 5��10^-7 m/s^2). .

JJF 1634-2017: Calibration Specification for Linear Accelerometers at Ultra-low Frequency and Ultra-low Level Acceleration


---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
(Standard for Calibration of Ultra - Low Frequency Micro - Accelerometer Accelerometers) People's Republic of China National Measurement Specifications Ultra-low frequency micro-acceleration linear accelerometer calibration specification CalibrationSpecification for LinearAccelerometersatUltra-lowFrequencyand 2017-09-26 Posted 2017-12-26 Implementation General Administration of Quality Supervision, Inspection and Quarantine released Ultra-low frequency micro-acceleration line acceleration Calibration standards The focal point. National inertial measurement technology committee Drafting unit. China Aviation Industry Corporation Beijing Great Wall Measurement and Testing Technology Research Institute China Academy of Launch Vehicle Research Institute No.102 This Code entrusts the National Technical Committee of inertial measurement technology is responsible for the interpretation The main drafters of this specification. HE Yi Cai (China Aviation Industry Corporation Beijing Great Wall Measurement and Testing Technology Research Institute Institute) Dong Xueming (China Aviation Industry Corporation Beijing Great Wall Measurement and Testing Technology Research Institute Institute) Participate in the drafters. Yang Xiaowei (China Academy of Launch Vehicle Research Institute No. 102)

table of Contents

Introduction (Ⅱ) 1 Scope (1) 2 References (1) 3 Terms and measurement units (1) 4 Overview (1) 4.1 Accelerometer working principle (1) 4.2 accelerometer frequency response calibration principle (2) 5 Metrology (2) 5.1 Sensitivity Amplitude (2) 5.2 Sensitivity Frequency Response (2) 5.3 Sensitivity Linearity (3) 5.4 Dynamic Range (3) 5.5 Accelerometer dynamic threshold (3) 5.6 Accelerometer dynamic resolution (3) 6 Calibration conditions (3) 6.1 school accelerometer (3) 6.2 Calibration conditions (3) 6.3 Measurement standards and equipment (3) 6.4 Selection of calibration parameters (4) 6.5 Other requirements (4) 7 Calibration Items and Calibration Methods (4) 7.1 Reference Sensitivity Amplitude and Phase Shift Calibration (4) 7.2 Sensitivity Amplitude and Phase Frequency Response Calibration (5) 7.3 Sensitivity Amplitude Linearity Calibration (5) 7.4 Dynamic threshold calibration (5) 7.5 Dynamic Resolution Calibration (5) 8 Calibration Results (6) 9 time interval of correction (6) Appendix A accelerometer sensitivity calibration method and data processing (mathematical method) (7) Appendix B Evaluation examples of acceleration sensitivity measurement uncertainty (9) Appendix C ultra-low frequency micro-acceleration calibration device works (12)

Introduction

Linear accelerometers have a frequency response from low to direct current, the frequency range and acceleration amplitude range of existing national standards Wai can not cover the line frequency response bandwidth of the accelerometer. This specification, combined with the actual situation of linear accelerometer calibration, refers to the United States Institute of Electrical and Electronic Engineers in its organization established IEEEStd836-2009 "IEEE recommended line accelerometer Precision Centrifuge Test Specification "," Appendix E in the low-frequency range to determine the accelerometer transfer function "section prepared. Ultra-low frequency micro-acceleration linear accelerometer calibration specification

1 Scope

This specification specifies the linear accelerometer (hereinafter referred to as the accelerometer) in the ultra-low frequency (lower limit to 0.001Hz), micro Acceleration (lower limit to 5 × 10-7m/s2) conditions of the calibration items and calibration methods.

2 reference documents

This specification cites the following documents. JJG233-2008 piezoelectric accelerometer Vibration, impact, speed measurement terms and definitions Inertial technical terms GJB1037A-2004 Single Shaft Servo Acceleration Accelerometer Test Method IEEE Recommended Linear Accelerometer Precision Centrifuge Test Specification For dated references, only the dated version applies to this specification; for undated references The latest version (including amendments) applies to this specification.

3 Terms and measurement units

3.1 ultra-low frequency ultra-lowfrequency The range is from quasi-static 0.001Hz to low frequency vibration 0.1Hz. 3.2 micro-acceleration ultra-lowLevelacceleration Acceleration in the range of 5 × 10 -7 m/s 2 to 1 × 10 -2 m/s 2. 3.3 Mathematical swing (virtual) simpleharmonicpendulum-vibrationgenerator Mathematical swing table refers to the use of arc-shaped guide rail in the vertical plane virtual large radius of curvature of the pendulum movement platform. 3.4 with tilt shaft speedtable ratetablewithtiltedaxisofrotation With a turntable capable of tilting the rotary table.

4 Overview

4.1 accelerometer working principle Accelerometer mainly by the equivalent test quality, conversion components and circuits and mounting base and other components. When the accelerometer goes along When the measured object is moving, the quality of detection is affected by the inertial force generated by the acceleration of the outside world. The conversion element generates a signal corresponding to the input plus Speed proportional to the output signal. The mechanical model of a typical accelerometer approximates the typical second-order mechanical model of mass, spring, and damping system. d2x dt2 c dx dt kx C = -ma (1) In the formula. m --- equivalent test quality, kg;

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